package com.mr.inputformat;

import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

/*
 * Mapper中什么都不需要写。父类中的map()方法将key-value强转后写出了
 */

public class CustomMapper extends Mapper<Text, BytesWritable, Text, BytesWritable>{



}
